What are some good movies I can watch with my mom, 6-year-old brother, and 10-year old sister?

First, let me get the obvious ones out of the way. Before suggesting some hidden gems.

There are a number of massive movie franchises that are aimed for the whole family. Here are 10 that I recommend:

1. Marvel Cinematic Universe
2. Harry Potter
3. Star Wars
4. Jurassic Park/World
5. Back to the Future
6. Chronicles of Narnia
7. Batman
8. Spider-Man
9. The Mighty Ducks
10. Pirates of the Caribbean

Next, let’s go to animation. Here are 10 of the best family-friendly animated movie franchises (e.g. minimum 2 good movies):

1. Toy Story
2. How to Train Your Dragon
3. Shrek
4. Incredibles
5. Kung Fu Panda
6. Finding Nemo/Dory
7. Frozen
8. Despicable Me/Minions
9. The Lego Movie
10. Shaun the Sheep

Lastly, let me get to the more relatively obscure films in three particular genres:

Here are 10 musicals:

1. The Sound of Music
2. Annie
3. The Wizard of Oz
4. Bedknobs and Broomsticks
5. The Muppet Movie
6. Mary Poppins
7. The Greatest Showman
8. Newsies
9. Enchanted
10. Sister Act

Here are 10 comedies:

1. Mrs. Doubtfire
2. The Princess Bride
3. Ghostbusters
4. The Goonies
5. Babe
6. Paddington
7. Who Framed Roger Rabbit
8. Cool Runnings
9. Jumanji
10. E.T. The Extra Terrestial

Here are 10 animated hidden gems:

1. An American Tail
2. Spirited Away
3. Anastasia
4. The Iron Giant
5. Nausicaa and the Valley of the Wind
6. Wolfwalkers
7. The Mitchells vs. The Machines
8. Kubo and the Two Strings
9. Chicken Run
10. Happy Feet